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OPSWAT Metadefender Client Changelog

What's new in OPSWAT Metadefender Client 4.1.16.23

May 22, 2019
  • MetaDefender Client 4.1.16 is a maintenance release primarily focused on bug fixes
  • Fixed:
  • Last engine update has presented a wrong datetime
  • MetaDefender Client only shows the date
  • Both pause and play button show at same time
  • Refreshes the UI on the main tab
  • Disable media blocking option was greyed out
  • Media blocking option for USB was grayed out
  • Wrong filename encoding in report
  • Encoding characters for report files.

New in OPSWAT Metadefender Client 3.9.5 (Oct 30, 2015)

  • New Features:
  • Sanitization of e-mail attachments is now available with the Metascan Mail Agent. Sanitization can be enabled or disabled by updating the 'Mail Agent' workflow in the Metascan Management Console.
  • Metascan REST API keys can now be specified when generating Metascan Client packages so that Metascan Client can be used with Metascan servers that have REST API keys enabled
  • Other changes:
  • Fixed issue where Microsoft Office files were being detected as archives
  • The Metascan Mail Agent can now send notifications if an infected attachment is found even if the e-mail is not quarantined

New in OPSWAT Metadefender Client 3.9.4 (Oct 30, 2015)

  • New Features:
  • Metascan administrators can now choose whether or not to quarantine e-mails flagged as threats by the Metascan Mail Agent
  • E-mails quarantined by Metascan can now trigger e-mail notifications to the sender and receiver of the quarantined e-mail
  • Other changes:
  • MP4 and M4V files are now classified as the same file type for file type detection
  • Additional debug information collected in verbose log package
  • The Metascan Mail Agent is now only supported for use as an SMTP relay for all mail servers, included Microsoft Exchange
  • Metascan's data sanitization technology no longer wraps the output files in an archive if the output is a single file
  • Hash calculation can now be disabled for large files to improve performance

New in OPSWAT Metadefender Client 3.9.3 (Oct 30, 2015)

  • New Features:
  • A Beta version of configurable workflows has been added to Metascan and can be used through the 'process' REST API. Please refer to the Metascan Developer Guide section of the
  • Metascan documentation for more information on using this and related APIs.
  • Archive handling, file type analysis, quarantine/delete, file type conversion and 'copy to' post actions can all now be configured per workflow profile
  • A customized Automatic Definition Update Download Utility package can now be downloaded from the Metascan Management Console
  • Other changes:
  • The archive handling functionality has been updated to support more types of ISO and tar.bz2 archive extraction
  • The security and compatibility of the Metascan Management Console and web interface has been improved by replacing the PHP component with JavaScript
  • The ClamWin engine included in all Metascan packages has been replaced with the ClamAV engine

New in OPSWAT Metadefender Client 3.9.2 (Oct 30, 2015)

  • New Features:
  • Updated Linux version of Metascan Client including RedHat and CentOS support
  • Metascan Mail Agent now supports scanning e-mails on any SMTP servers in addition to Microsoft Exchange servers
  • Other changes:
  • The OESIS library used to utilize customer licensed engines has been updated to V4
  • Archive handling and quarantine options are now configured on the 'Scan Configuration' page under the ScanEx Configuration page
  • Removed the option to disable reporting on asynchronous scan progress from the Management Console. Option can still be disabled from the Metascan command line.

New in OPSWAT Metadefender Client 3.9.1 (Apr 17, 2015)

  • New Features:
  • Metascan Mail Agent for Exchange is included in all Metascan packages
  • Quarantine Manager is now available through the Metascan Management Console
  • Configuration settings can be exported and imported through the Management Console
  • Other changes
  • The number of Remote Client Licenses included with each Metascan package has been increased to 25
  • Significant performance improvements have been made when scanning large volumes of files
  • The Metascan service will now start automatically after installation
  • The ClamWin embedded engine has been updated to the latest version

New in OPSWAT Metadefender Client 3.9.0 (Apr 17, 2015)

  • New Features:
  • Metascan packages have been updated. Metascan 4 now includes the Avira and AhnLab engines and Metascan 16 now includes Kaspersky
  • Metascan Zero has been changed to Metascan 1, and now includes the ClamWin engine
  • f5 proxies are now supported by the Metascan ICAP server
  • Management Console look and feel has been updated
  • Other changes:
  • Metascan documentation is now accessible through the Management Console
  • Improvements have been made in Metascan's queueing mechanism, improving performance when the Metascan server is under high load
  • Management Console pages now load faster
  • Metascan service now starts automatically after installation
  • 7zip library has been upgraded to 9.20
  • The Metascan ICAP server can now be configured through the 'Sources' page in the Management Console
  • Additional information is now logged for scan requests through the ICAP interface
  • OESIS component has been updated to the latest version
  • OPSWAT is discontinuing Windows 2003 support in Metascan 3.9.0

New in OPSWAT Metadefender Client 3.8.3 (Apr 17, 2015)

  • Remote MongoDB access disabled when authentication is disabled
  • PHP updated to latest version (5.5.15)
  • Customer Licensed Engines are disabled by default

New in OPSWAT Metadefender Client 3.8.2 (Apr 17, 2015)

  • New Features:
  • Configuration of Windows Event Log and Syslog logging in the Management Console
  • Option for Metascan ICAP server to show overloaded web page (for details, refer to Using ICAP Server guide)
  • Troubleshooting logs available for download through the Metascan Management Console
  • Updated Metascan Client Linux to Beta2
  • Added .NET to installer
  • Other changes:
  • Enhanced handling database connection usages with high load logging
  • Enhanced ICAP server to better handle HTTP header with invalid characters
  • Fixed failure of applying offline update when multiple temporary directories is configured
  • Better recovery of REST server after an unexpected restart

New in OPSWAT Metadefender Client 3.8.1 Beta (Apr 17, 2015)

  • New Features
  • Support scanning of VMware virtual machines (for details, refer to Software Developer Guide)
  • More detailed scan results for files inside of archives (for details, refer to Software Developer Guide)
  • Support scanning original unextracted archive even after extracting (for details, refer to Metascan Configuration Guide)
  • File type conversions now supported from the Metascan command line interface (for details, refer to Software Developer Guide)
  • Handle too many scan requests more gracefully on REST and Metascan COM
  • Support for upgrading custom engines from the Metascan command line interface (BETA)
  • Enhanced logging in the Metascan Management Console
  • Debug report available through the Metascan Management Console
  • Metascan Client 3.0.5
  • Beta release of Metascan Client for Linux and Mac (BETA)
  • Other changes
  • Updated version of AVG
  • Heuristic scan for ESET enabled by default
  • Updated version of Bitdefender
  • Support adjust_non_english_filenames property for files inside of archive
  • File upload limit on web scan is configurable via GUI
  • Enhanced handling temporary files
  • Storing file (via v2 REST or web scan) is disabled by default.
  • Many minor bug fixes

New in OPSWAT Metadefender Client 3.8.0 (Apr 17, 2015)

  • New Features
  • Metascan 4 package now includes AVG
  • Logging to Syslog
  • Scanned files downloadable from Management Console log
  • Beta version of new REST API
  • Other changes
  • Remove service restart requirement for some configuration changes
  • Client licensing now measured over 24 hour period
  • Default daily scan limit set to 10,000,000 scans/day
  • Added RAM drive support to Windows 7, 8, 2008 R2, 2012.
  • Discontinued REST server logging/API key authentication (v1 REST API)

New in OPSWAT Metadefender Client 3.7.6 (Apr 17, 2015)

  • New Features:
  • Beta release of REST v2 API (for more details, please contact OPSWAT)
  • Original file name now displayed as part of scan logging page in Management Console
  • Updated Java sample code/documentation
  • Ability to clear scan history from Management Console
  • Metascan events from the Windows event log displayed in Management Console
  • Proxy configuration added to Management Console
  • JAVA interface syncscan now returns scan details, including per engine results
  • Other changes:
  • Minor ICAP server bug fixes
  • Minor REST server bug fixes
  • Minor logging bug fixes

New in OPSWAT Metadefender Client 3.7.5 (Apr 17, 2015)

  • Added system information to debug command
  • Upgrades to K7, AVG, Norman, Emsisoft, and GFI engines
  • Full Blue Coat ProxySG Support for Metascan ICAP server
  • Better messaging in Metascan ICAP server for archives that exceed defined limits
  • New web-based Metascan Management Console
  • Support for remote scanning of large (>2GB) files
  • Support for centralized logging in MongoDB

New in OPSWAT Metadefender Client 3.7.4 (Jul 30, 2013)

  • New Features:
  • Support compatibility with Metadefender 3.x
  • Metascan Web-based Management Console (configuration for Scan/Engines/Metascan Client)
  • Metascan Web-based Management Console (deploy offline update)
  • Other changes:
  • Enhanced logging of scan results
  • Updated Metascan Web Management Console to use latest PHP 5.5
  • Upgraded mongodb to the latest version (2.4)

New in OPSWAT Metadefender Client 3.7.3 (Jul 30, 2013)

  • New Features:
  • New customizable web pages for cases when Metascan ICAP server identifies a potential threat
  • Enhanced configurability of scan results logging (by default, only infected files will be logged)
  • Other changes:
  • Enhanced stability of Metascan ICAP server
  • Fixed bug where customer-licensed engines were not being detected

New in OPSWAT Metadefender Client 3.7.2 (Jul 30, 2013)

  • New Features:
  • Included ICAP Server(BETA) supporting Squid Proxy
  • Updated Metascan 8 Package to include BitDefender engine
  • Web-based Management Console Dashboard
  • Enhanced error messages for black/white lists
  • Generation and download pages for 64bit version of Metascan Client
  • Renamed VirusBuster to Agnitum
  • Other changes:
  • Enhanced BitDefender engine integration to handle multi-thread scanning

New in OPSWAT Metadefender Client 3.7.1 (Jul 30, 2013)

  • New Features:
  • added support of configurable hash (for more details, refer to Metascan Configuration Guide)
  • high performance built-in db (mongoDB) for Metascan
  • more comprehensive logging of scan results
  • more comprehensive logging of client information with remote scanning
  • update cache to be based on SHA256 instead of SHA1
  • On-demand generation of Metascan Client deployed with Metascan (for more details, refer to Using REST server)

New in OPSWAT Metadefender Client 3.7.0 (Jul 30, 2013)

  • New Features:
  • New REST server running under IIS Express (For more details, refer to Using REST Server documentation)
  • Other changes:
  • Fixed bug where the Metascan license information displayed "trial" even after successful activation of a Metascan license
  • Enhanced Java Interface to handle massive file scanning
  • Improved handling of password encrypted RAR archive files
  • Fixed bug where the Metascan Management Console displayed out-of-date engine information for updates done through offline update

New in OPSWAT Metadefender Client 3.6.4 (Jul 30, 2013)

  • New Features:
  • Support for extraction of self-extracting archives created in 7-Zip and WinRAR
  • Configurable scan result consolidation for 'failed to scan' results from individual engines
  • Enhanced scan logging
  • Other changes:
  • Minor bug fixes

New in OPSWAT Metadefender Client 3.6.2 (Jul 30, 2013)

  • New Features:
  • Updated CA scan engine
  • Updated AVG scan engine
  • More efficient offline updates for Metascan 8 with more logging
  • Other changes:
  • Fixed Bug where Bitdefender engine would return multiple threats on a single file
  • Other minor bug fixes

New in OPSWAT Metadefender Client 3.6.1 (Jul 30, 2013)

  • New Features:
  • Upgraded GFI engine(VIPRE 5.0)
  • Scan hang detection and automatic recovery
  • Update hang detection and automatic recovery
  • Multiple temporary directories for extracting archive library
  • MMC does not need to restart when Metascan service restarts
  • Metascan Command Line Utility to return scan result as process exit code
  • Concurrent license for Remote Clients
  • Other changes:
  • Updated offline update download utility
  • Other minor bug fixes